Bubble level



FIG. 1 is a side elevational view of an “bubble level” showing my newdesign;

FIG. 2 is a right end view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

CLAIM The ornamental design for an “bubble level”, as shown anddescribed.